Grounding device



July 10, 1934. J: T. PEARSON GROUNDING DEVICE Filed Aug. 9, 1930 IINVENTOR. WTW

A TTORNEYS.

Patented July 1Q, 1934 T FFHCE GRGUNDENG DEVHCE John T. Pearsen,Syracuse, N. Y., assignor to Grouse-Hinds Company, Syracuse, N. Y., acorperation of New York Application August 9, 1930, Serial No. 474,170

6 Claims.

This invention relates to grounding devices or connectors for groundingelectric conduit systems to a grounded conductor, as a water pipe andthe like, which connector is particularly simple and economical inconstruction, quickly applied and adjusted to suit all conditions as tothe angles the conduits happen to come with respect to the Water pipe,or other conductor.

The invention consists in the novel features and in the combinations andconstructions hereinaiter set forth and claimed.

In describing this invention, reference is had to the accompanyingdrawing in which like characters designate corresponding parts in allthe 5 views.

Figure 1 is a longitudinal, sectional View of this connector, thegrounded conductor or water pipe, and the conduit, and ground wire ofthe conduit system being also shown.

Figure 2 is a plan view of the section attachable to the water pipe, thewater pipe being also shown.

Figure 3 is a face View of the body part of the connector attachable tothe water pipe.

Figure 4 is an end elevation looking to the right in Figure 3.

Figure 5 is a sectional view taken centrally of Figure 3.

Figures 6 and 'Z are respectively, a face view, and an edge view of themovable jaw.

Figure 8 is a longitudinal, sectional View of the movable jaw.

Figures 9, 10 and 11 are respectively, side elevation, edge View, and anend view of the operating member for the movable jaw.

This grounding device or connector comprises a body part, or a sectionhaving a fixed member, a movable jaw for coacting with the fixed member,and means connecting the two parts or sections comprising two swiveljoints arranged at an angle to each other. More specifically, itincludes an operating member for the jaw movable about an axisrelatively to the body part, the second body part or section havingmeans for connection to the conduit to be mounted, this being connectedto the operating member of the movable jaw by a joint, as a pivotaljoint which permits the second body section to be adjusted into variousradial angles so that the second body section is capable of adjustmentabout the axis of the operating member, and also about the axis of thejoint connecting it and the operating member, the latter being arrangedat a right angle to the axis of the operating member.

1 designates the first body part, which is a metal block having apassage 2 therethrough. The fixed member is preferably a strap 3anchored at its ends as by screws 4, 5 to. the sides of the block, theend portions of the strap 3 lapping the ends of the block. One end ofthe loop is provided with a single hole for receiving the screw 4, andthe other end with a plurality of holes 7 spaced apart lengthwise of thestrap in order that the size of the loop may be adjusted approximatelyto the size of the pipe P to which the body 1 is to be attached.

8 is a movable jaw arranged betweeni the branches of the loop 3 andmovable toward and from the intermediate part of the loop against thepipe P. The jaw 8 has lugs 8 at its ends slidably fitting grooves 1 atthe ends of the body 1.

9 is the operating member, this being mounted in the passage 2 andpreferably threading thereinto and having a stud 11 at its inner endwhich is riveted or otherwise secured to the jaw 8. The outer end of theoperating member is flattened in the form of a lug 12. When the loop 3has been adjusted to: the approximate size of the pipe P, the jaw 8 istightened against the pipe by turning the operating member 9.

13 designates a second body section having means as an internallythreaded collar 14 for receiving the conduit C of the system.

W designates the wire to be grounded, this extending through the conduitC and having a wire terminal T at its end.

The body section 13 has a lug or plate portion 15 lapping the lug 12 ofthe operating member 9 and securable thereto in any angular or radialposition by a screw 16 extending through an opening 17 in the lug orplate portion 15 of the body section 13 and threading into the lug 12.The head of the screw 16 also clamps or binds the wire terminal T to thebody section 13.

After the body or block 1 has been clamped to the pipe P and the bodysection 13 attached to the conduit C, the two body sections can beclamped together by means of the screw 16, and if additional turning ofthe operating member is required in order to bring the lugs 12 and 15into meeting relation, the operating member can be turned farther by awrench.

The opening 17 is preferably a slot for permitting a lengthwiseadjustment of the body 13, this slot facilitating the adjustment of thefitting to the particular situation or relative location of the pipe Pand conduit C.

What I claim is:

1. A grounding device comprising a body part, a fixed member carried bythe body part for ooacting with a conductor, said fixed membercomprising a looped strap having its ends anchored to the body part, amovable jaw for coacting with the loop arranged within the loop tothrust against the conductor, and operating means connecting the movablejaw and the body part, and a second body part for connection to aconduit, pivoted to said operating means.

2. A grounding device comprising a body part, a fixed member carried bythe body part for coacting with a conductor, said fixed membercomprising a looped strap having its ends anchored to the body part, amovable jaw for coacting with the loop arranged within the loop tothrust against the conductor, an operating member connecting the movablejaw and the body part, the operating member being movable about an axisrelatively to said body part, and a second body part pivoted to theoperating member on an axis extending transversely of the axis of theoperating member.

3. A grounding device comprising a body part, a fixed member carried bythe body part for coacting with a conductor, said fixed membercomprising a looped strap having its ends anchored to the body part, amovable jaw for coacting with the loop arranged within the loop tothrust against the conductor, an operating member connecting the movablejaw and the body part, the operating member threading into the bodypart, and a second body part having means for connection to a conduit,the second body part being pivoted to the operating member on an axisextending transversely of the axis of the operating member.

4. A grounding device comprising a body consisting of a block formedwith a threaded passage therethrough, a fixed member carried by the bodypart for coacting with a conductor, means for adjustably securing saidfixed member to the body to accommodate different sizes of conductors,

a movable jaw which in conjunction with the fixed member forms a clampfor the conductor, an operating member connecting the movable jaw andthe body part, said operating member threading through the passage inthe block and operable to clamp the movable jaw against the conductor, asecond body part having means for connection to a conduit, the secondbody part being pivoted to the operating member on an axis extendingtransversely of the axis of the operating member.

5. A grounding device for connecting a conduit to a conductor includinga block, a member carried by the block and coacting with the conductor,said block being formed with a threaded passage therethrough extendingperpendicular to the axis of the conductor, a movable jaw which, inconjunction with the fixed member, forms a clamp for the conductor, anoperating member for said movable jaw threading through the passage ofthe block and connected to said jaw, a body portion having means forconnection to the conduit and being pivoted to said operating member.

6. A grounding device for connecting a conduit to a grounded conductorincluding a block formed with a threaded passage therethrough, a membercarried by the block and coacting with the conductor, a movable jawwhich, in conjunction with said member carried by the block, forms aclamp for the conductor, an operating member for said movable jawthreading through the passage of the block, a body portion having meansfor connection to the conduit and being pivoted to the operating memberat the end thereof opposite the movable jaw, the clamp member carried bythe block consisting of a strap adjustably secured at its ends to theblock and forming a loop, and the movable jaw being operable between theside portions of the loop.

JOHN T. PEARSON.

